code: def test_cpp_timer(self):
      timer = benchmark_utils.Timer(
          """
                  #ifndef TIMER_GLOBAL_CHECK
                  static_assert(false);
                  #endif
  
                  torch::Tensor y = x + 1;
              """,
          setup="torch::Tensor x = torch::empty({1});",
          global_setup="#define TIMER_GLOBAL_CHECK",
          timer=timeit.default_timer,
          language=benchmark_utils.Language.CPP,
      )
      t = timer.timeit(10)
      self.assertIsInstance(t.median, float)
  
imports: import collections
  import json
  import os
  import re
  import textwrap
  import timeit
  from typing import Any, List, Tuple
  import unittest
  import torch
  import torch.utils.benchmark
  from torch.testing._internal.common_utils import TestCase, run_tests, IS_SANDCASTLE, IS_WINDOWS, slowTest, TEST_WITH_ASAN
  import expecttest
  import numpy
label_desc: Use image node_id 4 for calling the TestBenchmarkUtils obj's underlying member method code with example usage: obj.test_cpp_timer() without return types